Work through a whole AQA GCSE Chemistry topic one short step at a time. Each step has the key ideas, a diagram and five quick checks, and the next step unlocks when you get them right. The last step is a 6-mark exam question with a mark scheme. Your progress is saved on your device, so you can stop and come back.
✏️ Before you start
Have paper and a pen ready
Clicking through on screen is not enough. You remember far more when you write things down yourself. For every step:
- Make notes on the key ideas in your own words.
- Copy and label the diagram.
- Work out each quick check on paper before you pick an answer, especially calculations.
- Write the final exam question answer in full, then mark it yourself with the mark scheme.
Keep your notes for each topic together. They become your revision notes for the exam.
Doing Combined Science? See all 24 Combined Science topics in 10 steps, grouped by paper.
⚛️ Atomic Structure and the Periodic Table
Atoms, isotopes, electron shells and the groups of the periodic table.
🔗 Bonding, Structure and Properties of Matter
Ionic, covalent and metallic bonding, states of matter, forms of carbon and nanoparticles.
⚖️ Quantitative Chemistry
Conservation of mass, relative formula mass, moles, concentration, yield and gas volumes.
🧪 Chemical Changes
The reactivity series, extracting metals, acids, salts, pH and electrolysis.
🔥 Energy Changes
Exothermic and endothermic reactions, reaction profiles, bond energies, cells and fuel cells.
⏱️ The Rate and Extent of Chemical Change
Rates of reaction, collision theory, catalysts, reversible reactions and equilibrium.
🛢️ Organic Chemistry
Crude oil, alkanes, cracking, alkenes, alcohols, acids and polymers.
🔬 Chemical Analysis
Purity, formulations, chromatography, gas tests and identifying ions.
🌍 Chemistry of the Atmosphere
The early atmosphere, how it changed, greenhouse gases, climate change and air pollution.
♻️ Using Resources
Potable water, waste water, life cycle assessment, alloys and the Haber process.
Chemistry-only content is labelled in every topic, so Combined Science students know what they can skip. Higher tier content is marked (Higher).
Want more practice? Try the GCSE chemistry practice tools.
Doing physics, biology or geography too? Try physics, biology and geography topics in 10 steps.